Chautauqua Grape Belt. 



143 



Therefore on the shore of the present lake we have a terrace 

 plain of a nearly uniform level, and the terrace slope (Figs. 58, 59 

 and 61), the whole being composed of well rounded and water-worn 



64. — Pebbles of the modern beach at Barcelona. 



gravel and sand (Figs. 58 and 64). We also find numerous wave- 

 cut cliffs either in the clay (Fig. 61) or in the rock (Fig. 48) ; and 

 opposite the mouths of the streams there are often formed bars (Fig. 





,,,^,..,^<jl(, 





rSl^. 



65 — Section through a bar. Midway between Sheridan and Fredonia. Beach to be seen 

 in the background in llie gap cut thruugh the bar. 



60} which are welded at their base to the beach, and stretch more 

 or less completely across the stream mouth. Sometimes there are 



